Amplifier

Abstract

In a constant amplitude wave-combining type amplifier for splitting a single input signal into two parts by a distributor 1 , amplifying the split signal parts by first and second amplifiers 3 a , 3 b and then combining output signals amplified thereby, the amplifiers 3 a , 3 b comprise at least two amplifier elements accommodated in a single package. Also, the amplifier elements constituting the first and second amplifiers 3 a , 3 b are packaged in a close relationship to each other. Moreover, the amplifier elements constituting the first and second amplifiers 3 a , 3 b may be either field effect transistors or bipolar transistors.

1 . A constant amplitude wave-combining amplifier, comprising at least a distributor for splitting a single input signal into two parts, a first amplifier for amplifying one part of the signals from the distributor, a second amplifier for amplifying another part of the signals from the distributor, and a combiner for combining the output signals from the first and second amplifiers in the two systems, characterized in that:
 the first and second amplifiers comprise at least two amplifier elements accommodated in a single package.   
   
   
       2 . An amplifier of  claim 1 , wherein the amplifying elements constituting the first and second amplifiers are mounted in a close relationship to each other. 
   
   
       3 . An amplifier in  claim 1 , wherein the amplifying elements constituting the first and second amplifiers are field effect transistors. 
   
   
       4 . An amplifier of  claim 1 , wherein the amplifying elements constituting the first and second amplifiers are bipolar transistors. 
   
   
       5 . A power amplifier to provide an intended large power output by amplifying in parallel a common input signal using first and second amplifiers whose output signals are combined together, characterized in that:
 the first and second amplifiers employ at least two substantially equal transistors accommodated in a single package designed for push-pull amplifier applications.   
   
   
       6 . A power amplifier of  claim 5 , wherein the transistors are packaged in a substantially rectangular package in a side-by-side relationship.